[Boatanchors] Wanted: Millen 92200 tuner bandswitch

[KA2PTE]

Yes, same for linears...for the "hot switching" type problems.
Close the TR relay first, then send the RF through.

--
Steve Hearns [ KA2PTE ]


----- Original Message ----- 
From: "William Cromwell" <wrcromwell at gmail.com>
To: <boatanchors at mailman.qth.net>
Sent: Thursday, January 26, 2023 1:08 PM
Subject: Re: [Boatanchors] Wanted: Millen 92200 tuner bandswitch


> Hi Brian,
>
> I have the E F Johnson Matchboxes and their instructions. Other matching 
> devices also tell us to *NEVER* change the bandswitch position while the 
> transmitter is making RF power! It doesn't take 10KW to burn the contacts 
> if we move the switch while transmitting. Somebody sinned for sure.
>
> Most transmitters, especially the tube/valve kind, tell us to NOT change 
> the bandswitches while transmitting for the same reason.
>
> 73,
>
> Bill KU8H
>
> bark less - wag more
>
> On 1/25/23 22:31, Brian Harris via Boatanchors wrote:
>> After replacing both broken 1/4” shaft couplers and two broken ceramic 
>> standoffs I discovered the five position bandswitch looks like a CBer 
>> tried to run 10KW into an antenna with a high SWR.  ---snip---
>>
>> Thank you,
>>
>> WA5UEK
>>
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